Zvakanakira Welded Cold Yakagadzirwa Welded Structural Pipes
Muchikamu chekuvaka nekugadzira, kusarudzwa kwezvinhu zvekushongedza uye nzira dzinoita basa rakakosha mukupedzwa kunobudirira kwechero chirongwa.Chimwe chakadaro chave chakakurumbira mumakore achangopfuura inotonhora-yakaumbwa welded structural pombi.Ichi chigadzirwa chitsva chinopa akati wandei mabhenefiti pamusoro pechinyakare asina musono kana welded pombi, kunyanya spiral seam pombi.
Kutonhora yakaumbwa welded structuralpombi inogadzirwa kuburikidza neinotonhora-inogadzira nzira, iyo inosanganisira kukotama uye kugadzira makoiri esimbi mune inodiwa chimiro.Mhedzisiro yacho ipombi ine simba uye yakasimba, asi isingaremi uye iri nyore kushandisa.Pamusoro pezvo, iyo inotonhora yekugadzira maitiro inova nechokwadi chekuti pombi inochengetedza kuvimbika kwayo kwechimiro uye kurongeka kwayo, zvichiita kuti ive yakanaka kune welding application.
Mechanical Property
| Giredhi A | Giredhi B | Grade C | Grade D | Giredhi E | |
| Goho simba, min, Mpa(KSI) | 330(48) | 415(60) | 415(60) | 415(60) | 445(66) |
| Kusimba simba, min, Mpa (KSI) | 205(30) | 240(35) | 290(42) | 315(46) | 360(52) |
Kuumbwa Kwemakemikari
| Element | Kuumbwa, Max,% | ||||
| Giredhi A | Giredhi B | Grade C | Grade D | Giredhi E | |
| Carbon | 0.25 | 0.26 | 0.28 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Phosphorus | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sulfur | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
Hydrostatic Test
Hurefu hwega hwega hwepombi huchaedzwa nemugadziri kune hydrostatic pressure iyo inoburitsa mumadziro epombi kushushikana kusingasviki 60% yeiyo yakataurwa kushomeka kwegoho pakupisa kwekamuri.Kudzvanywa kunozotemwa neinotevera equation:
P=2St/D
Kusiyana Kunobvumirwa Muhuremu uye Zviyero
Hurefu hwega hwega hwepombi huchayerwa hwakasiyana uye huremu hwayo hahuzosiyane kupfuura 10% pamusoro kana 5.5% pasi pehuremu hwayo hwekufungidzira, huchiverengerwa uchishandisa kureba kwayo uye uremu hwayo pahurefu hweyuniti.
Iyo dhayamita yekunze haifanire kusiyana kupfuura ± 1% kubva kune yakatsanangurwa yekunze dhayamita.
Ukobvu hwemadziro chero nguva haufanire kupfuura 12.5% pasi peiyo yakataurwa madziro ukobvu.
Urefu
Single random urefu: 16 kusvika 25ft (4.88 kusvika 7.62m)
Hurefu hwakapetwa kaviri: pamusoro pe25ft kusvika 35ft (7.62 kusvika 10.67m)
Hurefu hwakafanana: musiyano unobvumidzwa ±1in
Ends
Mirwi yepombi inofanira kuiswa pachena, uye maburi ari kumigumo anofanira kubviswa.
Kana iyo pombi inopera yakatsanangurwa kuve bevel inopera, kona ichave 30 kusvika 35 degree
Imwe yemabhenefiti makuru echando-akaumbwa welded structuralpombi yeweldingndiko kugona kwayo kushingirira tembiricha yakakwira uye kumanikidzwa.Kusiyana nemapombi echinyakare, ayo anogona kukuvadzwa uye mamwe marudzi ekuora, mapaipi anotonhora anogadzirwa kuti akwanise kumira kuoma kwewelding uye mamwe maitiro eindasitiri.Izvi zvinoita kuti zvive zvakanaka kuti zvishandiswe mumhando dzakasiyana-siyana kubva pakuvaka kuvaka kusvika kumapurojekiti ezvivakwa.
Imwe mukana wekutonhora-yakaumbwa welded structural pombi ndiyo inodhura-inoshanda.Iyo inotonhora yekugadzira nzira inogona kuburitsa mapaipi muhukuru hwakasiyana uye maumbirwo, kuderedza kudiwa kwezvinodhura kukanda uye machining maitiro.Izvi zvinoita kuti chigadzirwa chiwedzere kudhura uye chakavimbika senge isina musono kana welded pombi.Pamusoro pezvo, huremu hwemhando yepombi inotonhora inoita kuti kutakurwa uye kuisirwa kuve nyore uye kudhura zvakanyanya, kuchiwedzera kukwezva kwayo.
Spiral seam machubhu anonyanya kubatsirwa kubva mukutonhora kuumba maitiro.Simba remukati uye kuchinjika kwemachubhu anotonhora akaumbwa anoaita akanakira kugadzira akasimba uye anovuza-uchapupu hwemajoini.Izvi zvinovaita sarudzo yakanaka yezvishandiso zvakaita sepasi pevhu, mitsetse yemvura uye kunyangwe masisitimu ekudiridza.Pamusoro pezvo, nzvimbo yakatsetseka yepombi dzakaumbwa inotonhora inoderedza njodzi yekukweshana uye kupfeka, kuwedzera hupenyu hwepombi uye kuderedza kudiwa kwekugadzirisa nekugadzirisa.
Pakazere, kutonhora kwakagadzirwa welded structural pombi inopa akati wandei mabhenefiti ayo anoita kuti ive sarudzo yakanakisa yewelding application, kunyanya spiral seam pombi.Simba ravo, kusimba uye kudhura-zvinobudirira kunoita kuti vave sarudzo inokwezva kune dzakasiyana-siyana dzemaindasitiri, kubva pakuvaka kusvika pakugadzira.Sezvo kudiwa kwemhando yepamusoro-soro, zvinhu zvinovimbika zvichiramba zvichikura, inotonhora-yakaumbwa yakashongedzerwa dhizaini pombi inozove iri kuramba yakakurumbira sarudzo yewelding application.
